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Finding the Fourth Proportional to 2,876.87, 4,316.08 and 1,028.18

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Solution

The fourth proportional to 2,876.87, 4,316.08 and 1,028.18 is: 1,542.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,876.87 : 4,316.08 = 1,028.18 : x
  2. Step 2: Convert to fraction form
    2,876.87/4,316.08 = 1,028.18/x
  3. Step 3: Cross multiply
    2,876.87x = 4,316.08 × 1,028.18
  4. Step 4: Simplify right side
    2,876.87x = 4,437,707.13
  5. Step 5: Solve for x
    x = 4,437,707.13/2,876.87
  6. Step 6: Final answer
    x = 1,542.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.